Supertech Valve Spring Kit (H Series) Choose Kit:H1000D - 80lb This stroker kit is meant

This stroker kit is meant to run an OEM K24 crankshaft in an S2000 block

Unique power producing exhaust port design

Ultra Series Street Intake Manifolds are manufactured from cast-aluminum high-grade 356 aluminum alloy for lightweight yet added strength over sheet metal manifolds

This is OEM quality with an ultra-high polish finish

Supertech Valve Spring Kit (H Series) Choose Kit:H1000D - 80lb This stroker kit is meantThese springs are suited for the weekend racer working with a limited budget. We recommend the higher spring pressure option for turbo or all motor. Part Numbers H1000D Seat Pressure 80 lb, Max Lift 14. 8mm H1005D Seat Pressure 93 lb, Max Lift 14. 8mm